Publications des scientifiques de l'IRD

Sabah A., Bancon-Montigny C., Rodier C., Marchand Pierre, Delpoux S., Ijjaali M., Tournou M. G. (2016). Occurrence and removal of butyltin compounds in a waste stabilisation pond of a domestic waste water treatment plant of a rural French town. Chemosphere, 144, p. 2497-2506. ISSN 0045-6535.

Titre du document
Occurrence and removal of butyltin compounds in a waste stabilisation pond of a domestic waste water treatment plant of a rural French town
Année de publication
2016
Type de document
Article référencé dans le Web of Science WOS:000367774400316
Auteurs
Sabah A., Bancon-Montigny C., Rodier C., Marchand Pierre, Delpoux S., Ijjaali M., Tournou M. G.
Source
Chemosphere, 2016, 144, p. 2497-2506 ISSN 0045-6535
The aim of this study was to investigate the fate and behaviour of butyltin pollutants, including monobutyltin (MBT), dibutylin (DBT), and tributyltin (TBT), in waste stabilisation ponds (WSP). The study was conducted as part of a baseline survey and included five sampling campaigns comprising bottom sludge and the water column from each pond from a typical WSP in France. Butyltins were detected in all raw wastewater and effluents, reflecting their widespread use. Our results revealed high affinity between butyltins and particulate matter and high accumulation of butyltins in the sludge taken from anaerobic ponds. The dissolved butyltins in the influent ranged from 21.5 to 28.1 ng(Sn).L-1 and in the effluent, from 8.8 to 29.3 ng(Sn).L-1. The butyltin concentrations in the sludge ranged from 45.1 to 164 and 3.6-8.1 ng(Sn).g(-1) respectively in the first and last ponds. Our results showed an average treatment efficiency of 71% for MBT, 47% for DBT, 55% for TBT. Laboratory sorption experiments enabled the calculation of a distribution coefficient (Kd = 75,000 L.kg-1) between TBT and particulate matter from the WSPs. The Kd explained the accumulation and persistence of the TBT in the sludge after settling of particulate matter. The continuous supply of contaminated raw wastewater and the sorption-desorption processes in the ponds led to incomplete bio- and photolytic degradation and to the persistence of butyltins in dissolved and particulate matrices throughout the survey period. It is thus recommended to use shallow ponds and to pay particular attention when sludge is used for soil amendment.
Plan de classement
Pollution [038] ; Hydrologie [062]
Description Géographique
FRANCE
Localisation
Fonds IRD [F B010066098]
Identifiant IRD
fdi:010066098
Contact